Gael adolph thibs



m 8 010 w, u A d e w E m P MIiW z m u V" V T M m l- |l\.|l Am 0 C. D.. D.. A v T d (N M d1) UNITED lSTATES PATENT Prion@ yTAPPIT FOR STAM P-IVIILLS.

SPECIFICATION forming part of Letters Patent No. 347,661, dated August 17, 1886.

Application filed March 25, 1886. Serial No.196,558. (No model.)

T0 all whom it may concern: x

Bc it known that I, CARL ADoLPH Trims, a citizen of the United States of America, residing at Concord, in the county of Cabarrus and State of North Carolina, have invented certain new and useful Improvements in Tappets for Stamp-Mills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had tothe accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to tappets for stampmills; and it consists in the improvements hereinafter described and claimed, whereby an improved tappet is provided that is ofsimple construction and adapted to have its wearingsurface readily renewed when desired.

In the accompanying drawings, forming part of this specification, Figure 1 represents in elevation one of the stamps of a mill having my improvements applied thereto. Fig. 2 is an enlarged central section of my improved tappet. Fig. 3 is a horizontal section on the dotted linea: x, Fig. 2; and Fig. 4 is a dtil perspective view of the tappet wearingp a e.

A refers to the horizontal driving-shaft of the mill, upon which are mounted the operating-cams for the several stamps composing the gang.

In the drawings it `has been considered sufiicient to represent a single stamp and cam therefor.

B designates the vertical shaft of the stamp serves merely as a counter-balance of the tappet, and is not employed in attaching the wearing-plate d thereto.

Beneath the body portion b of the tappet a steel wearing-plate, d, is attached, against which the cam D will abut, said platevbeing of such a shape that it will register with both the under side of the body of the tappet and with the flange c, which projects therefrom. The said plate d has projecting from its upper side lugs ef, which correspond in cross-section with the configuration of the openings in the projecting portion 'c of the tappet, through which they pass. The lugs c fare each provided with transverse slots, through which split keys m m pass for holding them in place, said keys resting upon the upper side of the projecting portion c. The plate d is also pro-- vided with a third lug, g, which projects upwardly therefrom at about an equal distance from each of the other lugs ef, and terminates in a head, h, which extends inwardly at right angles from the vertical portion thereof. The lower portion of the body b is provided with a vertical recess, t', which isof a sufficient size to permitthe lug g with its head 7L being in serted therein.

It will be noticed by reference to Figs. 2

and 3 of the drawings that the body b has a vertical recess for the reception of a key, j, which is employed to attach the same to the shaft B, and said key is locked securely in place by two wedge-shaped gibs, 7c Z, which pass through transverse openings in the upper and lower portions of the body, the position of the gibZ being such that it passes beneath the head 7L of the lug g, so as to secure the same in position against removal from the recess. The other two lugs, c f, pass through the openings in the lower projecting portion c a sufficient distance to permit the split keys m m to be passed through the openings in the said lugs to secure them in position.

It is desirable in most instances to interposc a yielding cushion or washerm, between the upper portion of the wearing-plate d and the lower portion of the body of the tappet to reduce concussion and to provide against irregular bearing of the plated. By insertingthis washer between the parts there'is no necessity of iinishing the castings. As the shaft A rotates,

the cam l), which is attached thcreto,will contact with the face of the Wearing-plate d, so as to elevate the tappct in the usual manner, and when said plate is worn so as to be useless it can be readily replaced by withdrawing the gib Zand split keys my m. The tappet can be securely held when adjusted vertically by the key j, which is located in a recess in the tappet, so thatit will bear upon the shaft, said key being,` locked in place by a gib, li.

I am aware that prior to niy invention it has been proposed to provide a tappet with a removable wearing-plate secured to the body-portion of the tappet by bolts; and I do not claim such construction, broadly.

CARL AnoLrn Tignes.

lVitncsscs:

VILLIAM CAXToN, HORACE L. BEALL. 

